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Outline

• interface IERC20
•    - function totalSupply()
•    - function balanceOf(address account)
•    - function transfer(address recipient, ...
•    - function allowance(address owner, add ...
•    - function approve(address spender, uin ...
•    - function transferFrom(address sender, ...
•  contract TimeLock *
•    - function deposit(address beneficiary, ...
•    - function withdraw(uint lockBoxNumber)

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/**
 *Submitted for verification at Etherscan.io on 2020-09-01
*/

// contracts/OffshiftVesting.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

contract TimeLock {
    IERC20 token;

    struct LockBoxStruct {
        address beneficiary;
        uint balance;
        uint releaseTime;
    }

    LockBoxStruct[] public lockBoxStructs; // This could be a mapping by address, but these numbered lockBoxes support possibility of multiple tranches per address

    event LogLockBoxDeposit(address sender, uint amount, uint releaseTime);
    event LogLockBoxWithdrawal(address receiver, uint amount);

    constructor(address tokenContract) public {
        token = IERC20(tokenContract);
    }

    function deposit(address beneficiary, uint totalAmount, uint trenchAmount, uint firstRelease, uint releaseStride) public returns(bool success) {
        require(token.transferFrom(msg.sender, address(this), totalAmount));
        LockBoxStruct memory l;
        l.beneficiary = beneficiary;
        l.balance = trenchAmount;
        l.releaseTime = firstRelease;
        lockBoxStructs.push(l);
        for (uint i = 1; i < 20; ++i) {
            uint time = firstRelease + (releaseStride * i);
            l.releaseTime = time;
            lockBoxStructs.push(l);
            emit LogLockBoxDeposit(msg.sender, trenchAmount, time);
        }
        return true;
    }

    function withdraw(uint lockBoxNumber) public returns(bool success) {
        LockBoxStruct storage l = lockBoxStructs[lockBoxNumber];
        require(l.beneficiary == msg.sender);
        require(l.releaseTime <= now);
        uint amount = l.balance;
        l.balance = 0;
        emit LogLockBoxWithdrawal(msg.sender, amount);
        require(token.transfer(msg.sender, amount));
        return true;
    }

}

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[{"inputs":[{"internalType":"address","name":"tokenContract","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"releaseTime","type":"uint256"}],"name":"LogLockBoxDeposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"LogLockBoxWithdrawal","type":"event"},{"inputs":[{"internalType":"address","name":"beneficiary","type":"address"},{"internalType":"uint256","name":"totalAmount","type":"uint256"},{"internalType":"uint256","name":"trenchAmount","type":"uint256"},{"internalType":"uint256","name":"firstRelease","type":"uint256"},{"internalType":"uint256","name":"releaseStride","type":"uint256"}],"name":"deposit","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"lockBoxStructs","outputs":[{"internalType":"address","name":"beneficiary","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"},{"internalType":"uint256","name":"releaseTime","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"lockBoxNumber","type":"uint256"}],"name":"withdraw","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000abe580e7ee158da464b51ee1a83ac0289622e6be

-----Decoded View---------------
Arg [0] : tokenContract (address): 0xABe580E7ee158dA464b51ee1a83Ac0289622e6be

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000abe580e7ee158da464b51ee1a83ac0289622e6be

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ipfs://3d2e286bfc45a3be47f1fb0254dc458f694b5ca9ea9a55058eca33c8aad2c457